If you want to overclock the card, you can refer to this overclock guide on Guru3D, and test different settings.
From my side, I was originaly at Core=800, Mem=1250. And can have a stable overclock at Core=1100, Mem=1350 without having to change voltage or anything else.

# The first number is for the Core frequency, the second for the Memory
sudo aticonfig --odsc=1100,1350
sudo aticonfig --od-enable
# IMPORTANT, check your temperature
sudo aticonfig --od-gettemperature

If you want to monitor global information about the card, where only on one card. (TODO: Post the script for several card)

NextCloud Installation

Open you browser, then create an admin user/pass and configure MySQL/MariaDB informations.

Setting strong directories permissions

As mentionned in the NextCloud documentation, strong directories permissions must be set up.
The following commands are extracted & adapted from the Official documentation regarding this tutorial.
doc: NextCloud Official Documentation.

What needs to be added to this script:
- Installation must be integrated with dialog and screen split with logs
- Add a starting menu allowing to: install / remove / change MySQL root password
- Add a Python version of this script
- Add a verification (enter twice) of the admin password

You can add more services check to this file, here a copy/paste of mine. So feel free to copy/paste the ones you desire.Info: here the check_command check_ping & check_ssh are directly executed by the Nagios server. While the others (using check_nrpe) are requested by the server command check_nrpe and are executed by the Nagios client.

Hostgroup configuration
Create a file with the following (You will have to add each concerned host to this file, on the line members, if you want to see them on the Host Groups web page).Info: Comment the linux-servers entry in the objects/localhost.cfg file